Gapped wheel.



F. WAGNER. GAPPED WHEEL. APPLICATION FILED DEO.28,190B.

Patented June 1,1909.

LIA I v itnesses:

Imentor Attorney UMTED STATES- PATENT ormon.

FREDERICK WAGNER, NEW YORK, N Y., ASSIGN OR TO N ILES-BEMENT-PONDCOMPANY,

OF-JERSEY CITY, NEW JERSEY.

GAPPED WHEE Specification of Letters Patent.

Patented June 1, 1909.

Application filed December 2a, 1908. serial in. 469,698.

To all whom it may concern:

it known that 1 FREDERICK \VAGKER, a citizen of the United States,residing at Mott Haven, New York, New York county,

'- New York, have invented certain new and formed with or secured to it,and, in order that the axles maybe gotten into the arbor, it isnecessary to radia ly slot the arbor and the gear-wheel and to provideafseparable patch for the gap attheperiphery of the. gear-wheel.

Myinvention pertains to an improved system for patching-the periphery ofa gear or'other wheel at its gap, and I1 illustrate the invention as;'appliedgto a. gap'ped gearwheel on the arbor of'alathe of the. cla'ssabove referred" to;

'My improvements, will be readilyfiinder stood tro n the followingdescription-taken in con'ne ion .with' the accompanying lira'w inginwj hFigure} p ace elevation-of a gapped gear embodying :my'improvement, thearbor with which the gear is connected appearing in vertical transversesection in the plane of line b of Fig'. '2.- Fig. 2 a horizontal sectionof the gear in the plane of line a of Figs.

' ,1, 3,4, 5 and 6: Fig. 3 a vertical transverse:

section of the'gear in. diverse planes indicated by line a, c, of Fig.1: Fig. 4- an elevation of the inside face'of the patch-block:.

Fig. 5 a vertical section of the patch-block and its seat in the planeof'lineof Figs. aa'and 4: Fig. 6 an edge elevation of the gapped andpatched rim of the wheel: and Fig. 7 a similar yiew illustratinga wheelhaving itsga'pand patch arranged n planes non-parallel with the axls ofthe wheel.

. A diversity of scalesi's involved in the drawing.

In the drawing,- .ignoring 7 for the present-4 indicates the wheel 2,its radial gap: 3, the arbor with which the wheel is connected: -l, theface-plates on the ends of the arbor: 5, the teeth with which the wheelis provided n case lt-is a gear-wheel, as is the case in the exampleillustrated: 6, the

patch-blockiitted to slide transversely in the gap atthe periphery ofthewhee'l, the patch fitting its. guideway closely: 7, an outwardlypresenting shoulder on each wallof the gap at the seat of thepatch-block: 8, an inward projection'from the patch-block at one side ofthe web of the wheel, this project-ion be- .ing flanged to engagesuitable guideways on the inner face of the wheel-rim: 9, an in- ;wardly open recess in the patch-block-projection 8': 10, dowel-pinsmounted in the opposite walls of the recess and adapted for movement'into and out of dowel-holes in the walls of the gap: 1l, springsconnected with the dowel-pins and urging them outwardly into thedowel-holes: 12, an inwardly projecting handle secured to eachdowel-pin:

and 13, screws in the patch-block-projection,

engaging keyways in the dowel-pins to keep the dowel-pinsfrom turnin Thepatch-block properj'is the fullwidth of thefrim of the wheel whileitsinward pro jection 8 may well be restricted in width so as to lieentirelyatone side of the Web of the wheel, or at one side ofthe arms ofthe wheel if the wheel be of armed type. To remove the patch-block the,handles are com? pressed towardjeach other and the patch withdrawnsidewise from the wheel, the patch being inserted in the gap by an oppositemanipulation. The fitting of the patch in its seat in the 'ap issuch as to insure the proper relationshlp of the patch-block to thewalls'of the gap, the main object of the dowel-pins'being to hold thepatch in place in the wheel rather than to position the patch radiallyin the wheel. One dowel-pin alone will answer this purpose, but I prefera pair of them illustratedand, whether one or two dowel-pins beemployed, it is decidedly advantageous to provide the patch with a pairof handles, in order that the grasp of the hand may be readily effectivein drawing inward the one or two dowel-pinsw'hich may employedi Intheuse of this patch sy tem of gappedwheel it is advisable-to fit and placethe patch before the rim of the wheel is finished,

, regardless of Whether the wheehrirn be plain or toothed. For instance.in a toothed wheel with cut teeth, the" teeth shouldbe cut in wheel and1 gears and angle-gears'and, in such case it isadvisable thatthe'guideway for the patch. be arranged at an angle corresponding Withthat of the teeth. Thus Fig. 7 illustrates a. wheel with its patch at anangle to insteadv 1 having a .radialgap provided with a trans ofparallel "with the wheel-axis, and the anglefor the seating of the patchshould correspond, substantially, with the angle at which the teeth areformed. I may add that in iathes of the type above referred to it iscommon to drive their arbors by means of gear-wheels having theirteethdisposed angularly and acting as worm-gears.

lclaimz I, j 1. A gapped wheel comprising,a' wheel having a radial gapprovided with a transverse guideway at the periphery of the wheel,;apatch. fitted to slide in said guideway, a dowel-pin projecting fromsaid patch to a wall of the guideway and adapted to enter a dowel-holein such wall, a springcooperating with said dowel-pin and serving toseat it in its dowel-hole, andan nwardly {projectinghandle connectedwiththe dowelpin, substantially as set forth.

2. A gapped wheel comprising, a. wheel having a radial gap provided witha transverse guideway at the periphery of the wheel, a patch fitted toslide in said guide way, a dowel-pin projecting from said patch to awall of the guideway andadapted' to .enter a dowel-hole in such wall, aspring 00- .operating with said dowel-pinand servingto seat it in itsdowel hole, an inwardly projecting handle connected with the dowel 1pin, and a second-handle projecting. in-

wardly from the patch and adapted to be as set forth.

grasped concurrentlywith the first mentioned handle, substantially asset forth.

, 3, A, gapped wheel comprising, a wheel having a radial gap providedwith a transverse guideway at the ,periphery'. of the wheel,-a patchfitted to slidein said guide-.

way, dowel-pins projecting from opposite sides of said patch to theopposite walls of the guideway and adapted'to-e lter dowelholes in saidWalls, a spring cooperating with each dowel-pin and'serving to-seat it Iin its dowel-hole, and an inwardly projccting handle connected with eachdowel-pin, .suhstantially. as. set forth.

l. A 'gapped wheel comprising, a"- wheel verse guideway at "theperiphery of the wheel at an angle'to the axis of the wheel,

a patch fitted to slide in .said gnideway, a

dowel-pin projecting from said patch v to'a wall of the guideway andadapted toenter a dowel-hole lI1 such wall, a spr1ng"coop-' 5. A gappedwheel comprising, a wheel formed with a rimand hub and connecting memberbetween the rim and hub and having a radial gap provided with atransverse guidewayat the rim, a patch fitted to slide in, saidguidewayand complete the-rim at the gap and having an inward project-ionat one side of said connecting member ofthe wheel, a dowel-pinprojecting outwardly from said projectionto a wallofthe guidewayand-adapted toenter a dowel hole in Such wall, a spring cooperatingwithsaid dowel-pin and serving to seat it' in its dowelhole, and an inwardlyprojecting handle 1 ,connected' with the dowel-pin, substantiallyFREDERICK WAGNER. lVitnesses:

' ,TILLIAM BERGMAN,

SrnnonR T. CASE.

